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<h3 class="heading"><span class="type">Paragraph</span></h3>
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<li><p>Harmonic oscillation in <span class="process-math">\(x\text{,}\)</span> exponential decay in <span class="process-math">\(t\text{.}\)</span></p></li>
<li><p>exponential decay in <span class="process-math">\(t\text{,}\)</span> except the term <span class="process-math">\(C_0\text{.}\)</span> Decay faster for larger <span class="process-math">\(n\text{.}\)</span></p></li>
<li><p>As <span class="process-math">\(t\to\infty\text{,}\)</span> <span class="process-math">\(u(x, t) \to C_0\text{,}\)</span> which is the average of <span class="process-math">\(f(x)\)</span> (initial temperature). This is reasonable because the bar is insulated.</p></li>
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